Medicament-dispensing cartridge



Dec. 1 1925.

H. S. COOK MEDI CAMENT DI SPENS ING CARTRIDGE Filed March 2, 1922 ewculoz Patented Dec. 1, 1925.

UNITED STATES v 1,564,048 PATENT-OFFICE- HARVEY S. ooomon VALPARAISO, INDIA NA, ASSIGNOR TO' COOK LABORATORIES INC., OF CHICAGO, ILLINOIS. A CORPORATION OF DELAWARE.

MnnIoAMnNT-msPnnsme CARTRIDGE.

Application filed March 2 erence to one illustrative embodiment shown T in the, accompanying drawings, -1I1 which:

Fig. 1, is a side elevation of a medicament cartridge partly enclosed by a label, whose thickness is shown exaggerated.

Fig. 2, is a side elevation partly in section showing the cartridge fitted to a' syringe and having its contents partially expelled.

Fig. 3, is an elevation in section on line 3-4: of Fig. 1.

It is to be understood that the illustrative embodiment shown in the drawings is simply a preferred form of the invention; and

' that in the following explanation of that 7 3o specific fornnthe described details of structure and organization are merely exemplary.

The cartridge 1 shown in the drawings is formed from a tubular section of glass or of any similar material which is transparent and substantiallyunaiiected by whatever Inedicame'nt'may be placed therein. At one end the cartridge is closed by a slidabl e resilient plug 2 (which provides a plunger for expelling the medicament), and at the other end is closed by a plug 3, which is preterably recessed axially, as shown, to faci itate piercing by the syringe needle 4 (Fig. 2)

' Between the two plugs a sterile liquid medi camcnt of known volume is held; and when the syringe needle has been thrust through plug 3 and the slidable plug 2 has been pushed inwardly, the medicament is ejected through the needle.

' In order that the origin of the cartridge may be indicated, as well as the character of its contents and the usual doses for children and adults, each cartridge has a printed label 5 secured in any desirable manner to its outer wall, and so arranged relative to the inner faces of the plugs 2 and 3 that filed by me.

1922. Serial No. 540,627;

raduation marks 6 provided along either ongitudinal edge 7 of the label, will indicate fractions of the total volumetric contents of the cartridge. The label may be of paper, adhering by mucilage, or of any equlvalent material which will lie snugly upon the cartridge. To permit the interior of the cartridge to be seen, the longitudinal edges 7 of the label are separated an appreciable distance from each other, as shown in Fig. 1. Thus the practitioner may assure himself that there is no precipitate or visible impurity contained in the cartridge; an important advantage in view of the unstable nature of some medicaments.

Referring to Fig. 2wherein the cartridge is shown inserted in a hypodermic syringe 8 provided with a longitudinalopening or window 9,'it will be observed that the graduation marks 6 provided along one edge of the label appear through the syringe opening 9.. Furthermore, as these edges of the label are spaced apart, the interior of the transparent cartridge may be examined as the plunger 10 of the syringe pushes the slidabie p ug 2 toward the needle end of the instrument. Thus .if, under the circumstances of the case, but one-third of a dose may be safely injected, the .hysician may, with certainty, eject one-thirdbt the contents of the cartridge by releasing pressure on the plunger at the moment when the inner face of the slidable plug 2comes opposite the appropriate graduation mark. Use of the described cartridges thus'permits a practitioner to administer a dose with more assurance and ease than has been possible with earlier types of medicament package The particular construction of cartridge shown in this instance, is not herein claimed per so, because said cartridge, independently of its association with the .12. e1 herein claimed in combination therewith, IS the subject matter of a prior pending application Obviously the present invention is not re stricted to the particular embodiment thereof herein shown and described.

What I claim is:

1. As an article of manufacture, a package for liquid medicaments constructed and arranged to be inserted in a hypodermic syringe; said package including a tube of transparent material and ofunit'orm bore, so that its length is a function of its volume; said inbn waiad a1; e apnsiiie by pings, one of bai t0 iiifi auteiwaii of said tuba but leaving a iongztudinaiiy segment Qf inn tube expose-(i so flint. tiie cont i. i. may be viewed; said label having swi Extending iengtii- Wisskhereof aiong nine margin; the lane insing an arranged between the: of the mice that its markings read in terms of doses (in fractions iLiiQifQOi its be administered from the package.

2. in combinzitisn with a nygwdenmc synimving a iiniiow chamber whose W211i erced iongituciinaiiy is provide a Win- I sight npeningg, and which is son- I i and arranged. in admit a tubniar \inent for dispensing mmients, iii: a medicament comprising a. transparent body of uniform crass-section. so that its length is a function of its volume; a ping sealing one end of said body and being siiciable by the plunger 0f ins an dispense the medicament ii -tough. the other end of the body; a label adhering t0 the wail of said body with n exi nding longitudinally of the buciy, Enid iiibei so positioned on h tube that its scziie Tends terms of doses or fractions iiiereof and is visibie through the syringe ,vv'indow when the package is in piangwliile a FOIJtiOIi of theirnnspnrent wail of Siiii package is unsovered by the label so that the position of the siidabie ping inizitive to the scnle'n'my be obsmwed during aninjec iidn In tesaimony whereof i 2111i): my signature.

HARVEY s. coon. 

